i
1) A letter that hoards of businesses and websites put in front of their names and products to make them sound cool. The trend was started by Apple Inc. and since then countless companies have jumped on the bandwagon and done the same thing.

2) A letter which, when placed in front of any word, indicates the online version of that thing; regardless of whether the online version actually exists or not.
1) I just went to iGoogle on my iMac and searched for BBC iPlayer but then someone texted my iPhone to tell to me that iMesh have been taken down off the web.

2) I was getting iBullied by this iThug and I kept hoping the iPolice would show up and kick him into iJail.
by Atomik Spongeface June 21, 2008

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i
A letter Apple really seems to enjoy putting in front of every single product they sell.
iMac? What the fuck is this shit?
*kicks the expensive paperweight*
by Johnny Rocketfingers September 17, 2003

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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i
An imaginary number. The square root of a negative one.
What is 2i squared?
by gateway_gamer January 03, 2004

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i
A letter that overly energetic high school girls add to their otherwise traditional names to make them "cute".
Cheerleader: Hi, I'm Jenni--with an i! And this is my friend, Christi.
by me. September 06, 2004

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I
1)First-person singular pronoun in a sentence's subject.

2) '1' in Roman Numerals.

3) The Alphabet's 9th letter.
1) I am trying out this new hair regrowth formula.

2) Super Bowl I had the Packers in it, so you should be glad that you weren't alive to see it.

3) 'I' comes after 'H'.
by Diggity Monkeez January 23, 2005

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I
symbol for current, in amperes. Defined by the voltage (in volts) in a current divided by resistance(in ohms).
The voltage is 10 Volts, and the resistance is 5 Ohms. So, I is equal to 2. I need to get laid. Badly.
by Tom April 18, 2005

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i
An integer variable which, for historical reasons, is commonly used to count the iterations of a loop.
#include<iostream.h>
int main (void)
{
for(int i = 0, i <= 9999, i++)
{
cout << "All work and no play
makes Jack a dull boy.\n";
}
return 0;
}
by Existential Elevator November 30, 2003

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i
See Narcissist.
by Blah August 09, 2003

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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